iStat Menus lets you monitor your system right from the menubar. Included are 8 menu extras that let you monitor every aspect of your system. iStat Menus 5 sports a completely new design - new menubar icons, new dropdown menus, and the app and icon itself have all been redesigned to be cleaner, clearer and more at home on Yosemite. Menubar graphs can now use dark backgrounds, improving legibility.Better per-app statsiStat Menus 5 features read and write disk activity on a per-app basis. Upload and download activity is also shown per-app, making it far easier to track down the biggest bandwidth hogs.

Time & world clocksA vastly improved time menu, with current time, sunrise, noon, sunset, dawn, dusk, sun azimuth, sun altitude, light map and more for over 120,000 cities. Daylight is now indicated in the clock face (it even fades near sunrise and sunset).

CPU & GPURealtime CPU graphs and a list of the top 5 CPU resource hogs. CPU usage can be tracked by individual cores or with all cores combined, to save menubar space. Plus, GPU memory and processor usage on supported Macs, and the active GPU can be shown in the menubar.

MemoryMemory stats for your menubar as a pie chart, graph, percentage, bar or any combination of those things. Opening the menu shows a list of the apps using the most memory, and other useful info.

NetworkA realtime graph to keep on top of what's being sent and received for all network connections, including a bandwidth breakdown for the top 5 apps.

Disk usage & activitySee used and free space for multiple disks in your menubar. S.M.A.R.T. status monitoring and more detail for all your disks is only a click away. Detailed disk I/O in your menubar, displayed as a graph, a variety of different read and write indicators, or both.

SensorsRealtime listings of the sensors in your Mac, including temperatures, hard drive temperatures (where supported), fans, voltages, current and power. Fan speeds can be controlled, with different rules when on battery power, if you'd like.

Date & timeA highly configurable date, time and calendar for your menubar, including fuzzy clock and moon phase. Open iStat Menus' calendar to display upcoming events, or events for any day. Plus, a world clock with sunrise, sunset, moonrise and moonset times for over 120,000 cities.

What's New in Version 5.20:- Added additional sensors for some Macs.- Added ability to search for states when adding world clocks.- Added a new single letter day token to date formatters that uses the MTWRFSU format.- Added separate Order tab for controlling menu item order in macOS 10.11.- Added informational tooltips to clock format tokens.- Reduced CPU usage.- Reduced memory usage.- Improved support for macOS 10.12 Sierra.- Improved GPU monitoring on macOS 10.11+.- Improved UPS support. - Improved support for late 2015 iMacs.- Improved support for 2016 MacBook.- Improved some sensor names.- Improved Portuguese, French and Italian localisations.- Fixed an issue where the time item may not detect automatic timezone changes correctly.- Fixed an issue with network interfaces sometimes being incorrectly showing as inactive.- Fixed an issue where some GPUs may not have been shown on Mac Pros.- Fixed an issue with bandwidth in the menubar with virtual interfaces.- Fixed an issue with calendar event and reminder access on macOS 10.11.- Fixed an issue with the combined dropdown when changing dropdown skins.- Fixed an issue with disk space not being reported for some disks.- Fixed an issue with the CPU cores submenu not updating. - Fixed an issue with S.M.A.R.T. hard drive temps not showing for some drives.- Fixed an issue with sorting network processes by upload.- Fixed a memory leak on some systems.